However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
From a career standpoint, the term âbiologistâ can have many meanings. As a biologist, you might study plants, animals, people or a particular environment. You could work in marine biology, wildlife biology or biochemistry, travel to the Brazilian rain forest to study biological compounds or work in a clinical laboratory as a microbiologist.
Learn how to become a marine biologist. Research the education and career requirements, training information, and experience required for starting a career in marine biology.arine biologists must have knowledge in biology, chemistry, physics, geology and ecology. There are many areas of specialization, ranging from animal behavior to marine biotechnology. Some marine biologists focus on a particular species or geographic region.